Automatic spraying weeding device with quantitative liquid medicine mixing function

The invention discloses an automatic spraying weeding device with a quantitative liquid medicine mixing function, and relates to the technical field of agricultural weeding devices.The automatic spraying weeding device comprises a base, a plurality of material storage cavities are formed in a material taking assembly, and the sizes of the material storage cavities can be adjusted by means of pistons and adjusting rods, so that different setting requirements of the material storage cavities can be met; therefore, each storage cavity can obtain the needed material amount according to the set value, and the problems that the manual material taking amount is not accurate, consequently, the pesticide proportion is unbalanced, and the weeding effect is poor are solved. By arranging the first medicine storage assembly, the second medicine storage assembly and the water storage barrel, accurate butt joint of a plurality of feeding pipes and a plurality of first liquid drainage holes in sequence can be achieved in the